In this review, we will be comparing RP-8000F II and Q750, two Passive Floor-standing speakers from Klipsch and KEF. Let's have a brief look at the main features
of Klipsch RP-8000F II and KEF Q750 first before getting into our more
detailed comparison.
What size room are the Klipsch RP-8000F II and KEF Q750 speakers good for?
The size of the room in which you are planning to use these loudspeakers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their size and max power parameters:
In the following sections, we will get into more detail in order to better understand how the Klipsch RP-8000F II and KEF Q750 compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
Both RP-8000F II and Q750 are 2-way speakers.
| Driver |
Klipsch RP-8000F II |
KEF Q750 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 8-inch
|
2 x 6.5-inch
|
RP-8000F II features a 1" titanium Tractrix Horn Tweeter and 2 x 8" Cerametallic cone Woofer with a Crossover frequency at 1630 Hz. On the other hand, the Q750 features a 1" vented aluminum Dome Tweeter and 2 x 6.5" Aluminum Woofer with a Crossover frequency at 2500Hz.
Frequency Response
RP-8000F II has a frequency range of 32-25k Hz whereas Q750 has a frequency range of 48-28k Hz. With a minimum frequency of 32Hz, the RP-8000F II can go significantly deeper on the low side and provide stronger bass compared to the Q750's min frequency of 48Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
High Frequency
Floor-standing Speakers
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
RP-8000F II and Q750 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. RP-8000F II sensitivity is rated at 98 dB and the Q750's is at 88 dB. This 10 dB difference makes the Klipsch RP-8000F II a more sensitive speaker compared to KEF Q750, hence will play louder with the same amount of watts.
Sensitivity
Floor-standing Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.
Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
such as Impedance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
RP-8000F II features Binding post posts which make bi-amping or bi-wiring possible. Q750 has a Binding post which doesn't feature bi-amping/bi-wiring.
Klipsch RP-8000F II's Binding post terminals allows Bi-amping or bi-wiring
KEF Q750's Binding post terminals
Cabinet Type and Port Position
RP-8000F II has a rear firing port whereas Q750 has a front firing ports. KEF Q750's front-firing port gives more flexibility in placement in regards to proximity to walls compared to Klipsch RP-8000F II with its rear-firing port.
Physical Specs
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Klipsch RP-8000F II's and KEF Q750's external dimensions. Klipsch RP-8000F II has external dimensions of 1097.0 x 277.0 x 447.0mm ( 43-3/16 x 10-7/8 x 17-9/16inch) whereas KEF Q750 has external dimensions of 945.0 x 328.0 x 315.0mm ( 37-3/16 x 12-7/8 x 12-3/8inch) .
KEF Q750 is 152mm shorter and 132mm less deeper than Klipsch RP-8000F II but it is also 51mm wider.
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the Klipsch RP-8000F II is approximately 1238.2cm2 / 191.9inch2 and base area of the KEF Q750 is approximately 1033.2cm2 / 160.1inch2. The RP-8000F II requires 20% more surface area than the Q750 which gives it a small disadvantage on placement in tight spaces.
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The Klipsch RP-8000F II weighs 28.00kg / 61.6lbs and the KEF Q750 weighs 16.59kg / 36.5lbs. This makes the RP-8000F II 69% heavier than the Q750.
Here is a comparison of how RP-8000F II and Q750's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
What's in the Box of Klipsch RP-8000F II?
Here are the items that are included inside the box of RP-8000F II:
Floorstanding loudspeakerStabilizer feet (pre-installed)Grille2 Terminal jumpers (pre-installed)Rubber cap (pre-installed)User ManualImportant Safety InstructionsWarranty Information
What's in the Box of KEF Q750?
Here are the items that come with the Q750:
Floorstanding loudspeaker2 Outrigger feet4 Spikes6 Screws6 Washers4 Rubber insertsHex-keyOwners ManualWarranty Information
 Sensitivity |
98 dB
vs
88 dB
|
Play louder with same amount of amplification power |
 Woofer Size |
8 inches
vs
6.5 inches
|
Larger woofer |
| Low Frequency Response |
32 Hz
vs
48 Hz
|
Generates deeper bass |
 Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
 Price per pair* |
1798USD
vs
1800USD
|
costs less (*prices may change depending on the seller, location and time) |
 High Frequency Response |
28k Hz
vs
25k Hz
|
Generates higher frequency |
 Port Position |
Front
vs
Rear
|
Gives more flexibility placing close to walls |
 Passive Radiator |
2 x 6.25-inch
vs
None
|
Increases the bass performance |
 Height |
945mm
vs
1097mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1033cm2 (328x315mm)
vs
1238cm2 (277x447mm)
|
Takes less floor space |
| General |
Klipsch Reference Premiere RP-8000F II |
KEF Q750 |
| Brand |
Klipsch |
KEF |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 150 watts |
15-150 watts |
| Sensitivity |
98 dB |
88 dB |
| Impedance |
8 ohms |
8 ohms |
| Impedance |
n/a |
3.8 ohms |
| Frequency Response |
32-25k Hz |
48-28k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
8" |
6.5" |
| Woofer Composition |
Cerametallic cone |
Aluminum |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Tractrix Horn |
Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
1630 Hz |
2500Hz |
| Firing Direction |
rear |
front |
Physical Specs |
|
|
| Height |
1097.0mm (43.2") |
945.0mm (37.2") |
| Width |
277.0mm (10.9") |
328.0mm (12.9") |
| Depth |
447.0mm (17.6") |
315.0mm (12.4") |
| Weight |
28.00kg (61.6lbs) |
16.59kg (36.5lbs) |
| Enclosure |
Bass Reflex |
Passive Radiator |
| Finish |
MDF/Wood-grain vinyl |
MDF/Wood-grain vinyl |
| Available Colors |
Walnut, Black |
Walnut |
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
No |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |